DNV規格 DNV-SE-0478, 17th Edition, 2021: Verification of subsea facilities (Includes all amendments and changes through Amendment , October 2021)
Description
This specification may be adopted for the verification of parts of subsea facilities or selected project phases.
Subsea facilities typically comprise the following systems:
- downhole system
- subsea wellhead and tree system (including: choke, tubing hanger and connection systems)
- manifold, foundations and template
- flowlines and risers (including dynamic umbilical risers)
- subsea control umbilical's
- subsea production control system
- subsea processing system
- well intervention/completion/workover system
- ROT intervention system.
which are applied in various configurations and tailored to each particular project’s specific requirements.
This specification describes the principles of a levelled verification involvement. These principles may be applied both for planning of any need or obligations for independent external verification (third party) as well as internal company verification (second party).